Finding the Fourth Proportional to 158,537.62, 218,776.11 and 86,916.07
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Solution
The fourth proportional to 158,537.62, 218,776.11 and 86,916.07 is: 119,940.99
Step by Step Solution
- Step 1: Write the proportion equation
158,537.62 : 218,776.11 = 86,916.07 : x - Step 2: Convert to fraction form
158,537.62/218,776.11 = 86,916.07/x - Step 3: Cross multiply
158,537.62x = 218,776.11 × 86,916.07 - Step 4: Simplify right side
158,537.62x = 19,015,159,691.09 - Step 5: Solve for x
x = 19,015,159,691.09/158,537.62 - Step 6: Final answer
x = 119,940.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.